CN104191176A - Method for manufacturing low-temperature flow weighing container - Google Patents
Method for manufacturing low-temperature flow weighing container Download PDFInfo
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- CN104191176A CN104191176A CN201410419538.6A CN201410419538A CN104191176A CN 104191176 A CN104191176 A CN 104191176A CN 201410419538 A CN201410419538 A CN 201410419538A CN 104191176 A CN104191176 A CN 104191176A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention relates to a method for manufacturing a low-temperature flow weighing container. The method includes the following steps of material obtaining, marking off, blanking, edge planing, reeling, cleaning, pairing, welding, roundness correction, machining, recycling tank assembling and welding, marking off, tapping, pipe connecting flange welding, nondestructive testing, assembling and inspection and storage. According to weighing container equipment, liquid nitrogen and liquid oxygen at the temperature of minus 196 DEG C can be accurately weighed and corrected, and a residual liquid recycling device system can be achieved; the deviation of the distance between the center of mass and the axial line of a weighing tank does not exceed 3 mm, the coaxiality allowance phi between the center line of a neck tube of a recycling tank and the center line of a neck tube of the weighing tank is 0.3 mm, end face flatness of the neck tube of the weighing tank and the neck tube of the recycling tank is IT7, and the cylindricity allowance phi of the weighing tank is 3 mm.
Description
Technical field
The present invention relates to a kind of preparation method of weighing container, relate in particular to a kind of preparation method of low temperature flow weighing container.
Background technology
Weighing container equipment can be realized by gravimetric tank liquid nitrogen, the liquid oxygen flow of-196 DEG C calibration of weighing, and reach by recycling can the total system device that raffinate reclaims, but the weighing container deviation that existing explained hereafter goes out is large, exist main technique tackling key problem problem as follows:
Require static balancing test to guarantee that the axial line range deviation of barycenter and gravimetric tank is no more than 3mm, recycling can neck tube center line and gravimetric tank neck tube center line axiality franchise φ 0.3mm, gravimetric tank and recycling can neck tube end face flatness IT7, the cylindricity franchise φ 3mm of gravimetric tank.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of preparation method of low temperature flow weighing container is provided, solved the large problem of deviation in prior art.
Preparation method of the present invention comprises the steps:
Neck material-line-blanking-plane limit-reel-clear up-organize right-welding-campus-machining-recycling can assembly welding-line-perforate-welding pipe connecting flange-Non-Destructive Testing-assembling-inspection to put in storage;
step 1 neck material:get sheet material, the material surface defect that do not have, sheet material must not have layering; Board surface defect allows cleaning, and cleaning should be gently without corner angle, and ensures the permission minimum thickness of sheet material;
step 2 is rule:above-mentioned sheet material, apart from edge line 100mm place, is made mark and is transplanted;
step 3 blanking:by long above-mentioned sheet material plate plasma blanking, the wide shearing of plate: and the superficial layer that the surperficial slag producing when gas cutting is cut apart to blanking and impact are manufactured is removed by polishing; Sheet material length of run allowable error is 0-1mm; Sheet material two catercorner lengths are poor is 0-1mm; Run-on tab is 100x100 mm, and run-on tab thickness is identical with sheet metal thickness, and wall scroll weld seam needs 4 run-on tabs, and the initial termination of wall scroll weld seam respectively needs 2 run-on tabs;
step 4 is dug limit:above-mentioned sheet material groove face must not defectiveness; Behind sheet material plane limit, length of run allowable error is 0-1mm, and two diagonal differ from 0-1mm;
step 5 reel:roll direction two ends at above-mentioned sheet material and first carry out pre-bending, longitudinally groove inwardly, ensures to roll in process on plate without iron filings, foreign material, has rolled formation reel;
step 6 is cleared up:clear up at least oxide skin, greasy dirt, slag and other impurity within the scope of 30mm of both sides, above-mentioned reel groove and mother metal surface;
step 7 group pair:by reel group to tack welding, butt-joint clearance C=0mm, counterpart unfitness of butt joint b≤0.2mm;
step 8 is welded:above-mentioned reel is longitudinally welded into shell ring;
step 9 school circle:shell ring after above-mentioned welding is carried out on veneer reeling machine to school circle, clear up the splashing of shell ring weld seam, overlap and foreign material, in the circle process of school, sweep off in time the oxide skin splitting away off;
step 10 machining:on standard station, end socket outer surface cover is unified to a stiffening ring; Vertical car on upper cover after cover is got togather, clamping stiffening ring flat head end face, the good grooves with seal heads of turning is beaten meter accuracy point under the upper turning of stiffening ring when withdrawing, look for precision while facilitating car hole;
Then, end socket is taken off again to eye in upper vertical car support, play table and find above-mentioned withdrawing to beat the datum mark of table, then turning perforate is carried out in feed, the good spectacle groove of car;
By forging flange and head opening assembly welding, its flange endoporus reserves secondary operations reaming size; Then internal diameter tube and flange are welded mutually, wherein internal diameter tube and flange bevel for welding adopt straight mouthful to insert welding, adopt the welding deformation amount of argon arc welding control internal diameter tube and flange, and internal diameter tube reserves the size of secondary operations reaming;
Finally, by the end socket welding and flange, flange and internal diameter tube are carried out overall reaming; In support, eye finds stiffening ring to beat meter accuracy point, carries out second reaming;
Process gravimetric tank by above-mentioned mechanical processing steps;
step 11 recycling can assembly welding:by end socket and barrel soldering; Bearing, hanger and end socket welding; Manhole and barrel soldering, finally form recycling can;
step 12 is rule:taking over stroke position line on position, stay cutting surplus;
step 13 perforate:press the perforate of marking-out rule little progress row plasma;
step 14 is welded pipe connecting flange:plug-in type welding pipe connecting flange, welding point adopts complete penetraction and fusion in welding structure, leg rounding off;
step 15 Non-Destructive Testing:the weld seam of girth joint, flange and the end socket welding of longitudinal seam, end socket and the barrel soldering of end socket layout weld seam, cylindrical shell carries out 100% Non-Destructive Testing, X-ray Testing Technology grade is not less than AB level, carry out by the regulation of JB/T4730.2-2005, qualified rank is not less than III level;
Take over angle welding, bearing and the hanger of angle welding, adapter and flange welding and the angle welding of end socket welding of barrel soldering and permeate Non-Destructive Testing, carry out by the regulation of JB/T4730.5-2005, qualified rank is I;
step 16 is assembled:assembling gravimetric tank and recycling can, welding recycling can closes up ring; The internal diameter tube bottom of gravimetric tank is very good with jackscrew, the internal diameter tube vibrations of jolting during so as not to transport;
step 17 inspection warehouse-in:check and accept, check surface quality, size and size tolerance requirements thereof.
In described step 1, sheet material is steel plate S30408, δ 8 and δ 10.
In described step 2, along sheet material diagonal, make two place's marks and transplant.
In described step 8, step 11 and step 14, when multilayer welding, slag is cleaned out to Zai Han lower floor, scarfing cinder should be carried out after solidifying completely; Select A107 welding rod to weld, bake out temperature is 250 DEG C/1h, and welding wire is H08Cr21Ni10, and solder flux is SJ601; In welding process, interlayer is cleaned out, postwelding cleaning; Internal diameter weld bead height≤1.0mm; Face of weld is round and smooth excessively, and weld edge is no more than 3mm along weld seam axial direct dimension in any 300mm continuous weld length, and welding point does not exist lack of penetration.
Advantageous effect of the present invention is as follows:
Make weighing container equipment can realize the liquid nitrogen of-196 DEG C, the liquid oxygen apparatus system that calibration and raffinate reclaim of accurately weighing; The axial line range deviation of having realized barycenter and gravimetric tank is no more than 3mm, recycling can neck tube center line and gravimetric tank neck tube center line axiality franchise φ 0.3mm, gravimetric tank and recycling can neck tube end face flatness IT7, the cylindricity franchise φ 3mm of gravimetric tank.
Brief description of the drawings
Fig. 1 is the structural representation of weighing container of the present invention.
In figure, 1, safety valve, 2, jackscrew, 3, instrument, 4, anti-turbine frame, 5, bearing, 6, manhole, 7, recycling can, 8, the pipe of weighing, 9, pipe connecting flange.
Detailed description of the invention
Referring to accompanying drawing, in conjunction with specific embodiments, describe the present invention in detail.
Embodiment
As shown in Figure 1, weighing container is mainly made up of two parts, inner gravimetric tank and outside recycling can.Recycling can internal diameter 2400mm, tank wall thickness 10mm, gravimetric tank internal diameter 1800mm, the thick 8mm of tank skin, total length 6500mm.Remaining part is made up of leg assembly, people's aperture member, anti-vortex board assembly, safety relief device assembly, instrument and mouth of pipe assembly etc.Its preparation method comprises the steps:
Neck material-line-blanking-plane limit-reel-clear up-organize right-welding-campus-machining-recycling can assembly welding-line-perforate-welding pipe connecting flange-Non-Destructive Testing-assembling-inspection to put in storage;
step 1 neck material:get sheet material, sheet material is steel plate S30408, δ 8 and δ 10, the material surface defect that do not have, and sheet material must not have layering; Board surface defect allows cleaning, and cleaning should be gently without corner angle, and ensures the permission minimum thickness of sheet material;
step 2 is rule:above-mentioned sheet material, apart from edge line 100mm place, along sheet material diagonal, is made two place's marks and is transplanted;
step 3 blanking:by long above-mentioned sheet material plate plasma blanking, the wide shearing of plate: and the superficial layer that the surperficial slag producing when gas cutting is cut apart to blanking and impact are manufactured is removed by polishing; Sheet material length of run allowable error is 0-1mm; Sheet material two catercorner lengths are poor is 0-1mm; Run-on tab is 100x100 mm, and run-on tab thickness is identical with sheet metal thickness, and wall scroll weld seam needs 4 run-on tabs, and the initial termination of wall scroll weld seam respectively needs 2 run-on tabs;
step 4 is dug limit:above-mentioned sheet material groove face must not defectiveness; Behind sheet material plane limit, length of run allowable error is 0-1mm, and two diagonal differ from 0-1mm;
step 5 reel:roll direction two ends at above-mentioned sheet material and first carry out pre-bending, longitudinally groove inwardly, ensures to roll in process on plate without iron filings, foreign material, has rolled formation reel;
step 6 is cleared up:clear up at least oxide skin, greasy dirt, slag and other impurity within the scope of 30mm of both sides, above-mentioned reel groove and mother metal surface;
step 7 group pair:by reel group to tack welding, butt-joint clearance C=0mm, counterpart unfitness of butt joint b≤0.2mm;
step 8 is welded:above-mentioned reel is longitudinally welded into shell ring;
step 9 school circle:shell ring after above-mentioned welding is carried out on veneer reeling machine to school circle, clear up the splashing of shell ring weld seam, overlap and foreign material, in the circle process of school, sweep off in time the oxide skin splitting away off;
step 10 machining:on standard station, end socket outer surface cover is unified to a stiffening ring; Vertical car on upper cover after cover is got togather, clamping stiffening ring flat head end face, the good grooves with seal heads of turning is beaten meter accuracy point under the upper turning of stiffening ring when withdrawing, look for precision while facilitating car hole;
Then, end socket is taken off again to eye in upper vertical car support, play table and find above-mentioned withdrawing to beat the datum mark of table, then turning perforate is carried out in feed, the good spectacle groove of car;
By forging flange and head opening assembly welding, its flange endoporus reserves secondary operations reaming size; Then internal diameter tube and flange are welded mutually, wherein internal diameter tube and flange bevel for welding adopt straight mouthful to insert welding, adopt the welding deformation amount of argon arc welding control internal diameter tube and flange, and internal diameter tube reserves the size of secondary operations reaming;
Finally, by the end socket welding and flange, flange and internal diameter tube are carried out overall reaming; In support, eye finds stiffening ring to beat meter accuracy point, carries out second reaming;
Process gravimetric tank by above-mentioned mechanical processing steps;
step 11 recycling can assembly welding:by end socket and barrel soldering; Bearing, hanger and end socket welding; Manhole and barrel soldering, finally form recycling can;
step 12 is rule:taking over stroke position line on position, stay cutting surplus;
step 13 perforate:press the perforate of marking-out rule little progress row plasma;
step 14 is welded pipe connecting flange:plug-in type welding pipe connecting flange, welding point adopts complete penetraction and fusion in welding structure, leg rounding off;
step 15 Non-Destructive Testing:the weld seam of girth joint, flange and the end socket welding of longitudinal seam, end socket and the barrel soldering of end socket layout weld seam, cylindrical shell carries out 100% Non-Destructive Testing, X-ray Testing Technology grade is not less than AB level, carry out by the regulation of JB/T4730.2-2005, qualified rank is not less than III level;
Take over angle welding, bearing and the hanger of angle welding, adapter and flange welding and the angle welding of end socket welding of barrel soldering and permeate Non-Destructive Testing, carry out by the regulation of JB/T4730.5-2005, qualified rank is I;
step 16 is assembled:assembling gravimetric tank and recycling can, welding recycling can closes up ring; The internal diameter tube bottom of gravimetric tank is very good with jackscrew, the internal diameter tube vibrations of jolting during so as not to transport;
step 17 inspection warehouse-in:check and accept, check surface quality, size and size tolerance requirements thereof.
In described step 8, step 11 and step 14, when multilayer welding, slag is cleaned out to Zai Han lower floor, scarfing cinder should be carried out after solidifying completely; Select A107 welding rod to weld, bake out temperature is 250 DEG C/1h, and welding wire is H08Cr21Ni10, and solder flux is SJ601; In welding process, interlayer is cleaned out, postwelding cleaning; Internal diameter weld bead height≤1.0mm; Face of weld is round and smooth excessively, and weld edge is no more than 3mm along weld seam axial direct dimension in any 300mm continuous weld length, and welding point does not exist lack of penetration.
Claims (4)
1. the preparation method of low temperature flow weighing container, is characterized in that comprising the steps:
Neck material-line-blanking-plane limit-reel-clear up-organize right-welding-campus-machining-recycling can assembly welding-line-perforate-welding pipe connecting flange-Non-Destructive Testing-assembling-inspection to put in storage;
step 1 neck material:get sheet material, the material surface defect that do not have, sheet material must not have layering; Board surface defect allows cleaning, and cleaning should be gently without corner angle, and ensures the permission minimum thickness of sheet material;
step 2 is rule:above-mentioned sheet material, apart from edge line 100mm place, is made mark and is transplanted;
step 3 blanking:by long above-mentioned sheet material plate plasma blanking, the wide shearing of plate: and the superficial layer that the surperficial slag producing when gas cutting is cut apart to blanking and impact are manufactured is removed by polishing; Sheet material length of run allowable error is 0-1mm; Sheet material two catercorner lengths are poor is 0-1mm; Run-on tab is 100x100 mm, and run-on tab thickness is identical with sheet metal thickness, and wall scroll weld seam needs 4 run-on tabs, and the initial termination of wall scroll weld seam respectively needs 2 run-on tabs;
step 4 is dug limit:above-mentioned sheet material groove face must not defectiveness; Behind sheet material plane limit, length of run allowable error is 0-1mm, and two diagonal differ from 0-1mm;
step 5 reel:roll direction two ends at above-mentioned sheet material and first carry out pre-bending, longitudinally groove inwardly, ensures to roll in process on plate without iron filings, foreign material, has rolled formation reel;
step 6 is cleared up:clear up at least oxide skin, greasy dirt, slag and other impurity within the scope of 30mm of both sides, above-mentioned reel groove and mother metal surface;
step 7 group pair:by reel group to tack welding, butt-joint clearance C=0mm, counterpart unfitness of butt joint b≤0.2mm;
step 8 is welded:above-mentioned reel is longitudinally welded into shell ring;
step 9 school circle:shell ring after above-mentioned welding is carried out on veneer reeling machine to school circle, clear up the splashing of shell ring weld seam, overlap and foreign material, in the circle process of school, sweep off in time the oxide skin splitting away off;
step 10 machining:on standard station, end socket outer surface cover is unified to a stiffening ring; Vertical car on upper cover after cover is got togather, clamping stiffening ring flat head end face, the good grooves with seal heads of turning is beaten meter accuracy point under the upper turning of stiffening ring when withdrawing, look for precision while facilitating car hole;
Then, end socket is taken off again to eye in upper vertical car support, play table and find above-mentioned withdrawing to beat the datum mark of table, then turning perforate is carried out in feed, the good spectacle groove of car;
By forging flange and head opening assembly welding, its flange endoporus reserves secondary operations reaming size; Then internal diameter tube and flange are welded mutually, wherein internal diameter tube and flange bevel for welding adopt straight mouthful to insert welding, adopt the welding deformation amount of argon arc welding control internal diameter tube and flange, and internal diameter tube reserves the size of secondary operations reaming;
Finally, by the end socket welding and flange, flange and internal diameter tube are carried out overall reaming; In support, eye finds stiffening ring to beat meter accuracy point, carries out second reaming;
Process gravimetric tank by above-mentioned mechanical processing steps;
step 11 recycling can assembly welding:by end socket and barrel soldering; Bearing, hanger and end socket welding; Manhole and barrel soldering, finally form recycling can;
step 12 is rule:taking over stroke position line on position, stay cutting surplus;
step 13 perforate:press the perforate of marking-out rule little progress row plasma;
step 14 is welded pipe connecting flange:plug-in type welding pipe connecting flange, welding point adopts complete penetraction and fusion in welding structure, leg rounding off;
step 15 Non-Destructive Testing:the weld seam of girth joint, flange and the end socket welding of longitudinal seam, end socket and the barrel soldering of end socket layout weld seam, cylindrical shell carries out 100% Non-Destructive Testing, X-ray Testing Technology grade is not less than AB level, carry out by the regulation of JB/T4730.2-2005, qualified rank is not less than III level;
Take over angle welding, bearing and the hanger of angle welding, adapter and flange welding and the angle welding of end socket welding of barrel soldering and permeate Non-Destructive Testing, carry out by the regulation of JB/T4730.5-2005, qualified rank is I;
step 16 is assembled:assembling gravimetric tank and recycling can, welding recycling can closes up ring; The internal diameter tube bottom of gravimetric tank is very good with jackscrew, the internal diameter tube vibrations of jolting during so as not to transport;
step 17 inspection warehouse-in:check and accept, check surface quality, size and size tolerance requirements thereof.
2. the preparation method of low temperature flow weighing container according to claim 1, is characterized in that in described step 1, sheet material is steel plate S30408, δ 8 and δ 10.
3. the preparation method of low temperature flow weighing container according to claim 1, is characterized in that in described step 2, along sheet material diagonal, makes two place's marks and transplants.
4. the preparation method of low temperature flow weighing container according to claim 1, is characterized in that, in described step 8, step 11 and step 14, when multilayer welding, slag being cleaned out to Zai Han lower floor, and scarfing cinder should be carried out after solidifying completely; Select A107 welding rod to weld, bake out temperature is 250 DEG C/1h, and welding wire is H08Cr21Ni10, and solder flux is SJ601; In welding process, interlayer is cleaned out, postwelding cleaning; Internal diameter weld bead height≤1.0mm; Face of weld is round and smooth excessively, and weld edge is no more than 3mm along weld seam axial direct dimension in any 300mm continuous weld length, and welding point does not exist lack of penetration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419538.6A CN104191176B (en) | 2014-08-25 | 2014-08-25 | The preparation method of cryogenic flow weighing container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419538.6A CN104191176B (en) | 2014-08-25 | 2014-08-25 | The preparation method of cryogenic flow weighing container |
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| CN104191176A true CN104191176A (en) | 2014-12-10 |
| CN104191176B CN104191176B (en) | 2016-11-16 |
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| CN105081705A (en) * | 2015-09-17 | 2015-11-25 | 沈阳航天新光集团有限公司 | Method for manufacturing high-pressure spherical nitrogen storage tanks |
| CN105081702A (en) * | 2015-09-14 | 2015-11-25 | 南京汇登生物工程设备有限公司 | Machining technology of high-precision stainless steel reactor |
| CN108044301A (en) * | 2017-11-09 | 2018-05-18 | 浙江陶特容器科技有限公司 | A kind of manufacturing method of stainless steel cylinder |
| CN109443781A (en) * | 2018-09-19 | 2019-03-08 | 上海空间推进研究所 | Self feed back fault identification engine impulse operating condition flow measurement device and method |
| CN110732753A (en) * | 2019-10-30 | 2020-01-31 | 四川亚西机器有限公司 | Welding process for manufacturing inner container of low-temperature liquid storage tanks |
| CN111451721A (en) * | 2020-03-27 | 2020-07-28 | 江苏骏茂新材料科技有限公司 | Austenitic stainless steel and preparation method thereof |
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| CN109443781A (en) * | 2018-09-19 | 2019-03-08 | 上海空间推进研究所 | Self feed back fault identification engine impulse operating condition flow measurement device and method |
| CN110732753A (en) * | 2019-10-30 | 2020-01-31 | 四川亚西机器有限公司 | Welding process for manufacturing inner container of low-temperature liquid storage tanks |
| CN111451721A (en) * | 2020-03-27 | 2020-07-28 | 江苏骏茂新材料科技有限公司 | Austenitic stainless steel and preparation method thereof |
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| Publication number | Publication date |
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| CN104191176B (en) | 2016-11-16 |
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